Rivets And Fasteners Chap 8 Flashcards
Most common material used for rivets ?
Aluminium
Strongest rivet ?
Snap head
Three classes of rivet
Solid
Blind
Special purpose fasteners
What do solid rivets have on them
Symbol marked on there head or shank
D
L
P
G
Diameter
Land
Pitch
Gauge
Land
Distance from centre of the rivet to edge of material
Pitch
Distance between each rivet
Gauge
Thickness of material
What must you do before you fit a rivet
Make sure clearance is correct
Allowance
The length of the shank that comes out
Width - 1.5D
Thick - 0.5D
Squeeze riveting
Hydraulically or pneumatically tools
Rivet is squeezed not hit
Hammer dolly
Has crowned face
Reaction riveting
Two people required
One with reaction block
Inspection of rivet
Tight and correctly formed
Head has No damage or crack
Area has not been damaged by tool
SP 80 4 04
SP - type of metal
80 - type of head
4 - diameter in /32
04 - length in /16
Blind rivet
Used when access to one side of the panel
Don’t remove lubricant
Cherry max
Supplied lubricated do not remove lube
Visu lock
Blind rivet
Corrosion resistance property
Self locking device
Special purpose - Hi lock
Bolt and nut connected by thin wall
What must you do before riveting
Remove bur and sworf
When do you Countersink
Only do it if material is thicker than the head
Dimpling
Countersinking Just for thin sheet
Removal of rivet
File
Centre punch
Drill
Parallel punch
Removal of blind rivet
File
remove steel collar
Then centre punch
